Participatory actions using many media. Since 2009, on the human role in energy and material cycles. TIME BANK (2010): making a new local currency out of marmalade. All My Cycle (2010-11): one-and-a-half year body experience of the natural cycle of sustenance, fertilization and regrowth. Collaboration with biologist Dr. Jürgen Reckin and Dr. Haiko Pieplow. Exhibitions in Germany, Finland and China in 2012, with workshops on creating black humus for urban gardening from participants' body waste.